1. H. LINDSAY: in ‘The AESF shop guide’, 9th edn, 61; 1991, Orlando, FL, American Electroplaters and Surface Finishers Society.
2. M. CARANO: in ‘The AESF shop guide’, 9th edn, 143; 1991, Orlando, FL, American Electroplaters and Surface Finishers Society.
3. A. BLAIR: in ‘The AESF shop guide’, 9th edn, 136; 1991, Orlando, FL, American Electroplaters and Surface Finishers Society.
4. G. A. MARI: in ‘The AESF shop guide’, 9th edn, 115; 1991, Orlando, FL, American Electroplaters and Surface Finishers Society.